Subthreshold depressions: clinical and polysomnographic validation of dysthymic, residual and masked forms.

@article{Akiskal1997SubthresholdDC,
  title={Subthreshold depressions: clinical and polysomnographic validation of dysthymic, residual and masked forms.},
  author={Hagop Souren Akiskal and Lewis L. Judd and J. Christian Gillin and Helio Lemmi},
  journal={Journal of affective disorders},
  year={1997},
  volume={45 1-2},
  pages={53-63}
}
We summarize clinical and polysomnographic findings in support of the existence of a broad and prevalent spectrum of less than syndromal or subthreshold depressive conditions that constitute subeffective disorders. Many of these conditions were previously subsumed under such rubrics as 'neurotic,' 'characterological,' and 'existential' depressions. Prospective follow-up studies of neurotic depressions (defined by a predominance of the psychological features of, in most instances, less than… CONTINUE READING

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